Nonsingular global strings
广义相对论与量子宇宙学
2009-10-28 v2 天体物理学
高能物理 - 唯象学
高能物理 - 理论
摘要
We examine the possibility that time dependence might remove the singular nature of global string spacetimes. We first show that this time dependence takes a specific form -- a de-Sitter like expansion along the length of the string and give an argument for the existence of such a solution, estimating the rate of expansion. We compare our solution to the singular Cohen-Kaplan spacetime.
引用
@article{arxiv.gr-qc/9606002,
title = {Nonsingular global strings},
author = {Ruth Gregory},
journal= {arXiv preprint arXiv:gr-qc/9606002},
year = {2009}
}
备注
21 pages plain TEX, 4 figs. Published version (minor error corrected)